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The Therm 660 EFO Tankless Water heaters is Bosch's most compact outdoor model, and comes loaded with features you've come to expect such as freeze protection and built-in high temperature compatibility of up to 160 Degrees F.

We just switched from a tank water heater to the tankless Bosch Therm 660 EFO Natural Gas Therm Outdoor Tankless Water Heater. We have a bath and a half and so far so good. Many people are not familiar with Bosch, but they have been making these on-demand units for decades! My parents used them while my father was stationed in Germany in the 60s. The water heats up quickly and does not run out. I am anxious to get our next utility bill to see the savings there. Meanwhile, we will be putting the extra outdoor storage space to good use now that the old water heater tank is gone!

BEST ANSWER:From the Bosch Service manual that doesnt appear to be so, there is a conversion kit for it - though I have no idea how much - I live in HI and am looking at this also - but would need it on LP gas also.

BEST ANSWER:From the Bosch Service manual that doesnt appear to be so, there is a conversion kit for it - though I have no idea how much - I live in HI and am looking at this also - but would need it on LP gas also.

I just ordered (and received) the tankless heater 660EFO but it is informed that its remote control is an optional unit.It seems that the unit can't even turn on without this remote control.In your page, I can't see how to find one: BRC01USCan you help?Thanks for your time.

BEST ANSWER:Warranty information can be found in the manual on pages 50 and 51. Here is a link to the manual. http://demandware.edgesuite.net/aaea_prd/on/demandware.static/Sites-cpooutlets-Site/Sites-cpo-master-catalog/default/v1376901285993/product_media/bwh/bwhn660efong/documents/bwhn660efong_manual.pdf

BEST ANSWER:Warranty information can be found in the manual on pages 50 and 51. Here is a link to the manual. http://demandware.edgesuite.net/aaea_prd/on/demandware.static/Sites-cpooutlets-Site/Sites-cpo-master-catalog/default/v1376901285993/product_media/bwh/bwhn660efong/documents/bwhn660efong_manual.pdf

my friends in the country have one that runs on propane. unfortunately it has stopped working and there is no bosch service there. what techniques could they use themselves to try to get it working again?

Warranty

AquaStar Warranty

This warranty applies to both new and factory-reconditioned AquaStar water heaters.

General

AquaStar water heaters warranted by Bosch will furnish a replacement heat exchanger and will furnish a replacement of any other part which fails in normal use and service within the applicable periods specified below, in accordance with the terms of this warranty. The Bosch Water Heating replacement will be warranted for the unexpired portion of the original warranty. This warranty will be valid only for water heaters in possession of the original purchaser as recorded on the warranty card.

The Heat Exchanger

If the heat exchanger fails within twelve (12) years after the original installation and operation, Bosch thermotechnology corporation will furnish a replacement heat exchanger. However, if the water heater is in an approved domestic hot water recirculation application, this heat exchanger warranty is limited to five (5) years from date of original installation and operation. If the water heater is installed in other than a single family dwelling, this heat exchanger warranty is limited to two (2) years from date of original installation and operation.

All Other Parts

If any other part fails within two (2) years after original installation and operation, Bosch Water Heating will furnish a replacement part free of charge.

Shipping Costs

In addition to supplying the replacement part(s), Bosch Water Heating will provide ground service delivery for these parts.Expedited or upgraded shipping will be charged to the customer.

This warranty does not cover any labor costs associated with service, removal or re-installation of part(s). All such costs must be borne by the Purchaser.

Exceptions

This warranty will not apply:

to defects or malfunctions resulting from failure to properly install, operate or maintain the unit in accordance with the printed instructions provided;

to damage or abuse, accident, neglect or freezing and other acts of nature;

to damage resulting from operation with either the thermocouple or overheat sensor removed;

to failure of the heat exchanger resulting from the operation of the water heater in a corrosive atmosphere or at water temperatures exceeding the maximum rating, or if the water heater is not supplied with potable water.

to defects or damage cause by any attachment or modification, including any energy-saving device.

Note: The water heater must be free of damaging scale deposits, highly mineralized / unsoftened water and not subject to gas pressures greater than those shown on the rating plate, which must not be altered, defaced or removed.

It has come to our attention that products from Bosch Water Heating are being sold through on-line auctions and other unauthorized distribution channels. We believe that in some cases there are legitimate consumers trying to sell product that they have purchased through legitimate distribution channels. However, we are finding that some of the merchandise has actually been stolen from our customers. Please be advised that our product warranty is void with respect to stolen goods. Further, we reserve the right to require a legitimate sales receipt showing that the product was purchased from one of our customers in order to provide warranty coverage.

How to Make a Claim

The Owner should contact the dealer who sold the water heater covered by this warranty or

Owner should submit the warranty claim directly to Bosch Water Heating at the address listed below, and they will arrange for the handling of the claim.

Whenever any inquiry or service request is made, be sure to include the water heater model number, the date of manufacture, date of installation, Dealer's name and the watts and voltage.

When returning the water heater or component part(s), they must be individually tagged and identified with the Returned Goods Authorization # issued by Bosch Water Heating and shipped prepaid to Bosch Water Heating at the address below.

Miscellaneous

No one is authorized to make any other warranties on behalf of Bosch Water Heating. It is expressly understood that the replacement warranty of Bosch Water Heating shall be in lieu of any and all other warranties, express or implied, including warranties of merchantability or fitness for a particular use or purpose, and further that Bosch Water Heating shall not be liable for any loss or damage directly or indirectly arising from the use of the hot water heater, or for any consequential damages arising from such use (including damages from water leakage). Bosch Water Heating's sole liability with respect to any defect shall be for the replacement of defective part(s). Some states do not allow such limitations and exclusions, so the above may not apply to you. This warranty gives specific legal rights. You may also have other rights which vary from state to state. In the event that warranty service is required, reasonable proof of the effective date of installation and operation must be provided; otherwise it may not be possible to honor warranty. Bosch Tankless Water Heaters are only approved for installation/warranty in the US/Canada. Installing outside of US/Canada will void the Bosch Tankless warranty.

*Offer valid on first order for new email subscribers only. Previous purchasers and email subscribers on any of our CPO sites do not qualify for this offer. Economy shipping only. Excludes freight items.